Выдержка
Results of an investigation of underwater electrical wire explosions using high-power microsecond and nanosecond generators are reported. Different diagnostics, including electrical, optical, and spectroscopic, together with hydrodynamic and magnetohydrodynamic simulations, were used to characterize parameters of the discharge channel and generated strong shock waves. It was shown that the increase in the rate of the energy input into exploding wire allows one to increase wire temperature and amplitude of shock waves. Estimated energy deposition into Cu and Al wire material of up to 200 eV/atom was achieved. The spectroscopic analysis of the emitted radiation has unveiled no evidence for the formation of a shunting plasma channel. Analysis of the generated shock waves shows that ∼15% of the deposited energy is transferred into the mechanical energy of the water flow. Also, it was shown that converging shock waves formed by underwater explosion of cylindrical wire arrays can be used to achieve extremely high pressure at the axis of implosion. A pressure up to 0.25 Mbar at 0.1 mm distance from the axis of the implosion at a stored energy of ∼4 kJ was demonstrated. A model explaining the nature of similarity parameters, which have been phenomenologically introduced in earlier research, was suggested.
| Язык оригинала | Английский |
|---|---|
| Страницы (с-по) | 423-434 |
| Число страниц | 12 |
| Журнал | IEEE Transactions on Plasma Science |
| Том | 36 |
| Номер выпуска | 2 PART 1 |
| DOI | |
| Состояние | Опубликовано - 1 апр 2008 |
Отпечаток
ASJC Scopus subject areas
- Nuclear and High Energy Physics
- Condensed Matter Physics
Цитировать
Underwater electrical wire explosion and its applications. / Krasik, Yakov E.; Grinenko, Alon; Sayapin, Arkady; Efimov, Sergey; Fedotov, Alexander; Gurovich, Viktor Z.; Oreshkin, Vladimir I.
В: IEEE Transactions on Plasma Science, Том 36, № 2 PART 1, 01.04.2008, стр. 423-434.Результат исследований: Материалы для журнала › Статья
}
TY - JOUR
T1 - Underwater electrical wire explosion and its applications
AU - Krasik, Yakov E.
AU - Grinenko, Alon
AU - Sayapin, Arkady
AU - Efimov, Sergey
AU - Fedotov, Alexander
AU - Gurovich, Viktor Z.
AU - Oreshkin, Vladimir I.
PY - 2008/4/1
Y1 - 2008/4/1
N2 - Results of an investigation of underwater electrical wire explosions using high-power microsecond and nanosecond generators are reported. Different diagnostics, including electrical, optical, and spectroscopic, together with hydrodynamic and magnetohydrodynamic simulations, were used to characterize parameters of the discharge channel and generated strong shock waves. It was shown that the increase in the rate of the energy input into exploding wire allows one to increase wire temperature and amplitude of shock waves. Estimated energy deposition into Cu and Al wire material of up to 200 eV/atom was achieved. The spectroscopic analysis of the emitted radiation has unveiled no evidence for the formation of a shunting plasma channel. Analysis of the generated shock waves shows that ∼15% of the deposited energy is transferred into the mechanical energy of the water flow. Also, it was shown that converging shock waves formed by underwater explosion of cylindrical wire arrays can be used to achieve extremely high pressure at the axis of implosion. A pressure up to 0.25 Mbar at 0.1 mm distance from the axis of the implosion at a stored energy of ∼4 kJ was demonstrated. A model explaining the nature of similarity parameters, which have been phenomenologically introduced in earlier research, was suggested.
AB - Results of an investigation of underwater electrical wire explosions using high-power microsecond and nanosecond generators are reported. Different diagnostics, including electrical, optical, and spectroscopic, together with hydrodynamic and magnetohydrodynamic simulations, were used to characterize parameters of the discharge channel and generated strong shock waves. It was shown that the increase in the rate of the energy input into exploding wire allows one to increase wire temperature and amplitude of shock waves. Estimated energy deposition into Cu and Al wire material of up to 200 eV/atom was achieved. The spectroscopic analysis of the emitted radiation has unveiled no evidence for the formation of a shunting plasma channel. Analysis of the generated shock waves shows that ∼15% of the deposited energy is transferred into the mechanical energy of the water flow. Also, it was shown that converging shock waves formed by underwater explosion of cylindrical wire arrays can be used to achieve extremely high pressure at the axis of implosion. A pressure up to 0.25 Mbar at 0.1 mm distance from the axis of the implosion at a stored energy of ∼4 kJ was demonstrated. A model explaining the nature of similarity parameters, which have been phenomenologically introduced in earlier research, was suggested.
KW - Dense plasma
KW - Shock wave
KW - Wire explosion
UR - http://www.scopus.com/inward/record.url?scp=42649097606&partnerID=8YFLogxK
UR - http://www.scopus.com/inward/citedby.url?scp=42649097606&partnerID=8YFLogxK
U2 - 10.1109/TPS.2008.918766
DO - 10.1109/TPS.2008.918766
M3 - Article
AN - SCOPUS:42649097606
VL - 36
SP - 423
EP - 434
JO - IEEE Transactions on Plasma Science
JF - IEEE Transactions on Plasma Science
SN - 0093-3813
IS - 2 PART 1
ER -